你如何正确地将 parallelshell 与 npm 脚本一起使用? [英] How do you correctly use parallelshell with npm scripts?

问题描述

我正在尝试在 Windows 上的节点项目中使用 parallelshell 同时运行两个进程.

I am trying to use parallelshell with my node project on Windows to run two processes at the same time.

这是我的 package.json 文件的脚本部分:

Here is the scripts section of my package.json file:

"scripts": {
"start": "npm run watch:all",
"test": "echo \"Error: no test specified\" && exit 1",
"lite": "lite-server",
"scss": "node-sass -o css/ css/",
"watch:scss": "onchange \"css/*.scss\" -- npm run scss",
"watch:all": "parallelshell \"npm run watch:scss\" \"npm run lite\""

}

当我运行命令 npm start 时，我得到这个错误日志:

When I run the command npm start I get this error log:

TypeError [ERR_INVALID_ARG_TYPE]: The "options.cwd" property must be of type string. Received type function
at normalizeSpawnArguments (child_process.js:420:11)
at spawn (child_process.js:522:38)
at C:\Users\Daniel\Documents\development\online_classes\coursera_uhk_web_dev\Bootstrap4\conFusion\node_modules\parallelshell\index.js:104:17
at Array.forEach (<anonymous>)
at Object.<anonymous> (C:\Users\Daniel\Documents\development\online_classes\coursera_uhk_web_dev\Bootstrap4\conFusion\node_modules\parallelshell\index.js:100:6)
at Module._compile (internal/modules/cjs/loader.js:702:30)
at Object.Module._extensions..js (internal/modules/cjs/loader.js:713:10)
at Module.load (internal/modules/cjs/loader.js:612:32)
at tryModuleLoad (internal/modules/cjs/loader.js:551:12)
at Function.Module._load (internal/modules/cjs/loader.js:543:3)
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! confusion@1.0.0 watch:all: `parallelshell "npm run watch:scss" "npm run lite"`

npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the confusion@1.0.0 watch:all script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.

我的语法有问题吗?我可以单独运行命令 npm run watch:scss 和 npm run lite 并且它们工作正常，但我无法运行 parallelshell 命令.

Is there something wrong with my syntax? I can run the commands npm run watch:scss and npm run lite individually and they work fine, but I am not able to run the parallelshell command.

谢谢！

推荐答案

尝试将parallelshell版本从3.0.2降级到3.0.1

根据声明，这只是临时修复.

According to the statement, it is just a temporary fix.

https://github.com/darkguy2008/parallelshell/issues/57

以下是用于降级parallelshell的命令行语法:

Below is the command line syntax to for downgrading parallelshell:

sudo npm uninstall --save-dev parallelshell@3.0.2

sudo npm install --save-dev parallelshell@3.0.1

它对我有用.

希望这会有所帮助并让我们知道.

Hope this helps and let us know.

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